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Model SS8-72HD-555M | Mono PERC | 144 Half-Cut Cells | Monofacial | 1500V System Voltage
The SolarSpace SS8-72HD-555M 555W mono PERC solar panel has been engineered for high output and dependable performance. This monocrystalline module uses 144 M10 half-cut cells to deliver up to 555 watts of power with module efficiency up to 21.48%. It suits large residential arrays, commercial rooftops, carports, and utility projects where every square foot must produce more energy. Advanced multi-busbar cell design and high-density encapsulation help reduce resistive losses and boost yield in real conditions. Low degradation, robust construction, and a 1500V system rating support modern, high‑voltage string designs. Buyers receive bankable performance backed by a strong warranty package from SolarSpace, a global manufacturer with significant cell and module capacity.
High power density for tighter roofs: Each module delivers up to 555W, so fewer panels are needed for target system sizes. This allows powerful arrays on space constrained commercial roofs or ground mount projects.
Proven mono PERC M10 cell technology: Efficient monocrystalline PERC cells with multi‑busbar design capture more light and reduce internal resistance. This supports strong performance under varied irradiance conditions.
Reliable output across harsh climates: The operating temperature range from -40°C to 85°C supports installations in hot deserts and cold winters. Stable temperature coefficients help maintain energy yield during real‑world heat.
Robust mechanical design for long life: The anodized aluminum frame and tempered glass provide high mechanical strength. Modules handle significant front and rear loads when installed to manufacturer guidelines.
Bankable warranty and low degradation: A 12‑year product warranty covers materials and workmanship. The power warranty extends up to 30 years, with low annual degradation protecting long‑term production.
Sunlight hits the monocrystalline PERC cells inside the SolarSpace SS8-72HD-555M module and is converted into direct current electricity. Half‑cut M10 cells are connected in an optimized circuit that limits resistive losses and improves shade tolerance. Under standard test conditions, the module delivers a maximum power of 555W at around 42.15 volts and 13.17 amps. In real operating conditions, the module continues generating power at lower irradiance, with defined NOCT performance values. The 1500V system rating allows long strings that reduce balance‑of‑system costs. Generated DC power is routed through the IP68 junction box and cables to a string inverter or optimizer, where it is converted into usable AC power for on‑site loads or export to the grid.
High‑efficiency mono PERC cell operation: Monocrystalline PERC cells absorb sunlight on the front surface and reflect unabsorbed light back through the cell. This additional light pass increases carrier generation and supports higher conversion efficiency. The result is more power from the same module footprint compared with older cell designs.
Half‑cut and multi‑busbar circuit design: Each standard cell is split into two halves to reduce current through each path, which lowers resistive losses. Multi‑busbar technology spreads current pickup across many thin conductors, decreasing shading from metal lines. Together, these features improve performance under partial shading and enhance module reliability.
Thermal behavior and real‑world output: Temperature coefficients describe how voltage, current, and power shift as cells heat up during operation. The SS8-72HD-555M has a Pmax temperature coefficient of about -0.334% per °C, which helps limit power loss on hot days. Defined NOCT values allow realistic yield estimates for different climates and mounting conditions.
| Brand | SolarSpace Technology Co., Ltd |
| Model Number | SS8-72HD-555M (SS8-72HS 540‑560M series) |
| Cell Technology and Type | Monocrystalline Mono PERC (M10) |
| Number of Cells | 144 half‑cut cells (6 x 24) |
| Module Type | Monofacial module, mono PERC technology |
| Technology Family | SS8-72HS 540‑560M mono‑facial series |
| Nominal Power Range (Series) | 540 Wp to 560 Wp |
| Maximum Power (Pmax) STC | 555 Wp (STC) |
| Module Efficiency (STC) | Up to 21.48% for 555W module (up to 21.68% in series) |
| Power Tolerance | 0 ~ +3 % |
| Voltage at Maximum Power (Vmpp) STC | 42.15 V (555W module) |
| Current at Maximum Power (Impp) STC | 13.17 A (555W module) |
| Open Circuit Voltage (Voc) STC | 50.03 V (555W module) |
| Short Circuit Current (Isc) STC | 14.07 A (555W module) |
| Maximum Power at NOCT | 420 Wp for 555W module |
| Voltage at Maximum Power (Vmpp) NOCT | 39.67 V (NOCT conditions) |
| Current at Maximum Power (Impp) NOCT | 10.59 A (NOCT conditions) |
| Open Circuit Voltage (Voc) NOCT | 46.84 V (NOCT conditions) |
| Short Circuit Current (Isc) NOCT | 11.22 A (NOCT conditions) |
| Nominal Operating Cell Temperature (NOCT) | 45 ± 2 °C (800 W/m², 20 °C ambient, 1 m/s wind) |
| Operating Temperature Range | -40 °C to +85 °C |
| Temperature Coefficient of Pmax | -0.334 % / °C |
| Temperature Coefficient of Voc | -0.265 % / °C |
| Temperature Coefficient of Isc | +0.045 % / °C |
| Maximum System Voltage | 1500 V DC |
| Maximum Series Fuse Rating | 25 A |
| Mechanical Dimensions (H × W × D) | 2278 × 1134 × 30 mm |
| Weight | 31.2 kg (datasheet mechanical weight 27.5 kg) |
| Front Glass Type | Single tempered glass with anti‑reflection coating |
| Front Glass Thickness | 2.0 mm to 3.2 mm coated tempered glass |
| Frame Material and Color | Silver anodized aluminum alloy frame |
| Junction Box Rating and Diodes | IP68 rated junction box with 3 bypass diodes |
| Junction Box Protection Class | IP68 environmental protection class |
| Output Cable Specification | 4 mm² cable, typical length 300 mm or customized |
| Connector Type | MC4‑EVO2 or MC4 compatible connectors |
| Mechanical Load Capacity (Front) | 5400 Pa front mechanical load (when properly mounted) |
| Mechanical Load Capacity (Rear) | 2400 Pa rear mechanical load |
| Country of Origin | China |
Certifications:
IEC 61215, IEC 61730, IEC 61701 salt mist corrosion test, IEC 62716 ammonia corrosion test, IEC 60068 dust and sand test, ISO 9001:2015 quality management, ISO 14001:2015 environmental management, ISO 45001:2018 occupational health and safety management.
Inverter Compatibility:
Designed for 1500V DC systems and compatible with most modern string and central inverters that support high voltage strings, when configured within manufacturer design limits.
Environmental:
Tested for resistance to salt mist, ammonia, dust, and sand, making the module suitable for coastal, agricultural, and desert installations when properly installed.
Warranty:
12‑year product warranty for materials and workmanship. Linear power warranty up to 30 years, with first year degradation typically within 2% and subsequent annual degradation around 0.5%, ensuring approximately 84.95% rated power by year 30.
● Available | Contact us for lead time and pricing
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